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EUSFLAT
2009
153views Fuzzy Logic» more  EUSFLAT 2009»
15 years 4 months ago
A Type-2 Fuzzy Portfolio Selection Problem Considering Possibility Measure and Crisp Possibilistic Mean Value
This paper considers a portfolio selection problem with type-2 fuzzy future returns involving ambiguous and subjectivity. Since this proposed problem is not well-defined due to fuz...
Takashi Hasuike, Hiroaki Ishii
DEBU
2010
134views more  DEBU 2010»
15 years 4 months ago
Causality in Databases
Provenance is often used to validate data, by verifying its origin and explaining its derivation. When searching for "causes" of tuples in the query results or in genera...
Alexandra Meliou, Wolfgang Gatterbauer, Joseph Y. ...
JCT
2011
83views more  JCT 2011»
15 years 1 months ago
Sandpile groups and spanning trees of directed line graphs
Abstract. We generalize a theorem of Knuth relating the oriented spanning trees of a directed graph G and its directed line graph LG. The sandpile group is an abelian group associa...
Lionel Levine
JSC
2010
82views more  JSC 2010»
15 years 1 months ago
The first rational Chebyshev knots
A Chebyshev knot C(a, b, c, ) is a knot which has a parametrization of the form x(t) = Ta(t); y(t) = Tb(t); z(t) = Tc(t + ), where a, b, c are integers, Tn(t) is the Chebyshev pol...
Pierre-Vincent Koseleff, D. Pecker, F. Rouillier
JSS
2010
89views more  JSS 2010»
15 years 1 months ago
Verification and validation of declarative model-to-model transformations through invariants
In this paper we propose a method to derive OCL invariants from declarative model-to-model transformations in order to enable their verification and analysis. For this purpose we ...
Jordi Cabot, Robert Clarisó, Esther Guerra,...